headache (n.)
- ache
- aching
- ado
- aggravation
- angina
- annoyance
- anxiety
- backache
- bane
- bedevilment
- bellyache
- bore
- bother
- botheration
- cephalalgia
- chorea
- colic
- collywobbles
- devilment
- difficulty
- disadvantage
- downer
- drag
- drip
- earache
- epilepsy
- evil
- exasperation
- fret
- gripe
- gripes
- harassment
- heartburn
- hemicrania
- humdrum
- inconvenience
- matter
- megrim
- migraine
- molestation
- neuralgia
- neuritis
- neuropathy
- nuisance
- odontalgia
- otalgia
- palsy
- persecution
- pest
- pill
- polyneuritis
- priapism
- problem
- pyrosis
- radiculitis
- sciatica
- shingles
- stomachache
- toothache
- trial
- trouble
- twaddler
- vexation
- worriment
- worry
